Please send me e-mail with more
info on this or any other aspect of Navy Radio Communications
The TN-342 is used for impedance matching the AN/WRT-2 HF transmitter to an
antenna. It has a motor-driven inductor (RF autotransformer) plus a switch that
will bypass the tuner or add some capacitors in series or parallel with the
inductor.
After initial hosing off
This is cleaner than when we hauled it out of the weeds and dirt!
Simple Green & Elbow Grease
OK - clean enough to pull the case apart now
Not bad inside
Blower, Auto-transformer motor drive, Configuration switch motor drive
Blower directs air to coil
Main coil - an autotransformer with a shorting ring that moves under
motor control
Had to go inside here to get to several coax leads that were loose -
and some
-
Cleaned up, but I still need to repair the pressure gauge (charged
with 20 psi of dry nitrogen). The control connector is too corroded - will
have to be replaced.
Parts that were rattling around loose inside. The long machine screw
is to hold down a couple of cable clamps - but I can't figure out how to
get to them inside the main coil. I don't know what the 3/8-16 nut/washer
goes to - can't find anything like that inside!